Air Quality Profiling Report

Brought to you by YData

Dataset statistics

Number of variables	15
Number of observations	9357
Missing cells	0
Missing cells (%)	0.0%
Duplicate rows	0
Duplicate rows (%)	0.0%
Total size in memory	2.2 MiB
Average record size in memory	244.0 B

Variable types

DateTime	1
Categorical	1
Numeric	13

Alerts

`AH` is highly overall correlated with `PT08.S4(NO2)` and 1 other fields	High correlation
`C6H6(GT)` is highly overall correlated with `CO(GT)` and 5 other fields	High correlation
`CO(GT)` is highly overall correlated with `C6H6(GT)` and 6 other fields	High correlation
`NO2(GT)` is highly overall correlated with `CO(GT)` and 2 other fields	High correlation
`NOx(GT)` is highly overall correlated with `CO(GT)` and 4 other fields	High correlation
`PT08.S1(CO)` is highly overall correlated with `C6H6(GT)` and 6 other fields	High correlation
`PT08.S2(NMHC)` is highly overall correlated with `C6H6(GT)` and 5 other fields	High correlation
`PT08.S3(NOx)` is highly overall correlated with `C6H6(GT)` and 6 other fields	High correlation
`PT08.S4(NO2)` is highly overall correlated with `AH` and 5 other fields	High correlation
`PT08.S5(O3)` is highly overall correlated with `C6H6(GT)` and 6 other fields	High correlation
`T` is highly overall correlated with `AH` and 1 other fields	High correlation
`Time` is uniformly distributed	Uniform

Reproduction

Analysis started	2025-06-15 13:13:12.654683
Analysis finished	2025-06-15 13:13:37.705743
Duration	25.05 seconds
Software version	ydata-profiling vv4.16.1
Download configuration	config.json

Date
Date

Distinct	391
Distinct (%)	4.2%
Missing	0
Missing (%)	0.0%
Memory size	146.2 KiB

Minimum	2004-01-04 00:00:00
Maximum	2005-12-03 00:00:00
Invalid dates	0
Invalid dates (%)	0.0%

Histogram with fixed size bins (bins=50)

Time
Categorical

Uniform

Distinct	24
Distinct (%)	0.3%
Missing	0
Missing (%)	0.0%
Memory size	667.1 KiB

18.00.00	390
05.00.00	390
14.00.00	390
13.00.00	390
12.00.00	390
Other values (19)	7407

Length

Max length	8
Median length	8
Mean length	8
Min length	8

Characters and Unicode

Total characters	74856
Distinct characters	11
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	18.00.00
2nd row	19.00.00
3rd row	20.00.00
4th row	21.00.00
5th row	22.00.00

Common Values

Value	Count	Frequency (%)
18.00.00	390	4.2%
05.00.00	390	4.2%
14.00.00	390	4.2%
13.00.00	390	4.2%
12.00.00	390	4.2%
11.00.00	390	4.2%
10.00.00	390	4.2%
09.00.00	390	4.2%
08.00.00	390	4.2%
07.00.00	390	4.2%
Other values (14)	5457	58.3%

Length

Histogram of lengths of the category

Value	Count	Frequency (%)
18.00.00	390	4.2%
06.00.00	390	4.2%
20.00.00	390	4.2%
21.00.00	390	4.2%
22.00.00	390	4.2%
23.00.00	390	4.2%
00.00.00	390	4.2%
01.00.00	390	4.2%
02.00.00	390	4.2%
03.00.00	390	4.2%
Other values (14)	5457	58.3%

Most occurring characters

Value	Count	Frequency (%)
0	42498	56.8%
.	18714	25.0%
1	5067	6.8%
2	2730	3.6%
3	1170	1.6%
8	780	1.0%
4	780	1.0%
9	780	1.0%
5	779	1.0%
7	779	1.0%

Most occurring categories

Value	Count	Frequency (%)
(unknown)	74856	100.0%

Most frequent character per category

(unknown)

Value	Count	Frequency (%)
0	42498	56.8%
.	18714	25.0%
1	5067	6.8%
2	2730	3.6%
3	1170	1.6%
8	780	1.0%
4	780	1.0%
9	780	1.0%
5	779	1.0%
7	779	1.0%

Most occurring scripts

Value	Count	Frequency (%)
(unknown)	74856	100.0%

Most frequent character per script

(unknown)

Value	Count	Frequency (%)
0	42498	56.8%
.	18714	25.0%
1	5067	6.8%
2	2730	3.6%
3	1170	1.6%
8	780	1.0%
4	780	1.0%
9	780	1.0%
5	779	1.0%
7	779	1.0%

Most occurring blocks

Value	Count	Frequency (%)
(unknown)	74856	100.0%

Most frequent character per block

(unknown)

Value	Count	Frequency (%)
0	42498	56.8%
.	18714	25.0%
1	5067	6.8%
2	2730	3.6%
3	1170	1.6%
8	780	1.0%
4	780	1.0%
9	780	1.0%
5	779	1.0%
7	779	1.0%

CO(GT)
Real number (ℝ)

High correlation

Distinct	97
Distinct (%)	1.0%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	-34.207524

Minimum	-200
Maximum	11.9
Zeros	0
Zeros (%)	0.0%
Negative	1683
Negative (%)	18.0%
Memory size	146.2 KiB

Quantile statistics

Minimum	-200
5-th percentile	-200
Q1	0.6
median	1.5
Q3	2.6
95-th percentile	4.7
Maximum	11.9
Range	211.9
Interquartile range (IQR)	2

Descriptive statistics

Standard deviation	77.65717
Coefficient of variation (CV)	-2.2701781
Kurtosis	0.77830552
Mean	-34.207524
Median Absolute Deviation (MAD)	1
Skewness	-1.6661795
Sum	-320079.8
Variance	6030.6361
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
-200	1683	18.0%
1	305	3.3%
1.4	279	3.0%
1.6	275	2.9%
1.5	273	2.9%
1.1	262	2.8%
0.7	260	2.8%
1.7	258	2.8%
1.3	253	2.7%
0.8	251	2.7%
Other values (87)	5258	56.2%

Value	Count	Frequency (%)
-200	1683	18.0%
0.1	33	0.4%
0.2	45	0.5%
0.3	98	1.0%
0.4	160	1.7%
0.5	217	2.3%
0.6	244	2.6%
0.7	260	2.8%
0.8	251	2.7%
0.9	248	2.7%

Value	Count	Frequency (%)
11.9	1	< 0.1%
11.5	1	< 0.1%
10.2	2	< 0.1%
10.1	1	< 0.1%
9.9	1	< 0.1%
9.5	1	< 0.1%
9.4	1	< 0.1%
9.3	1	< 0.1%
9.2	1	< 0.1%
9.1	2	< 0.1%

PT08.S1(CO)
Real number (ℝ)

High correlation

Distinct	1042
Distinct (%)	11.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	1048.9901

Minimum	-200
Maximum	2040
Zeros	0
Zeros (%)	0.0%
Negative	366
Negative (%)	3.9%
Memory size	146.2 KiB

Quantile statistics

Minimum	-200
5-th percentile	746
Q1	921
median	1053
Q3	1221
95-th percentile	1502
Maximum	2040
Range	2240
Interquartile range (IQR)	300

Descriptive statistics

Standard deviation	329.83271
Coefficient of variation (CV)	0.31442882
Kurtosis	5.8369357
Mean	1048.9901
Median Absolute Deviation (MAD)	147
Skewness	-1.7215034
Sum	9815400
Variance	108789.62
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
-200	366	3.9%
973	30	0.3%
1100	28	0.3%
988	26	0.3%
969	26	0.3%
925	26	0.3%
938	26	0.3%
966	25	0.3%
970	25	0.3%
984	25	0.3%
Other values (1032)	8754	93.6%

Value	Count	Frequency (%)
-200	366	3.9%
647	1	< 0.1%
649	1	< 0.1%
655	1	< 0.1%
667	3	< 0.1%
669	1	< 0.1%
676	1	< 0.1%
678	1	< 0.1%
679	1	< 0.1%
681	1	< 0.1%

Value	Count	Frequency (%)
2040	1	< 0.1%
2008	1	< 0.1%
1982	1	< 0.1%
1975	1	< 0.1%
1973	1	< 0.1%
1961	1	< 0.1%
1956	1	< 0.1%
1934	1	< 0.1%
1918	1	< 0.1%
1917	1	< 0.1%

NMHC(GT)
Real number (ℝ)

Distinct	430
Distinct (%)	4.6%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	-159.09009

Minimum	-200
Maximum	1189
Zeros	0
Zeros (%)	0.0%
Negative	8443
Negative (%)	90.2%
Memory size	146.2 KiB

Quantile statistics

Minimum	-200
5-th percentile	-200
Q1	-200
median	-200
Q3	-200
95-th percentile	144.2
Maximum	1189
Range	1389
Interquartile range (IQR)	0

Descriptive statistics

Standard deviation	139.78909
Coefficient of variation (CV)	-0.87867881
Kurtosis	18.863824
Mean	-159.09009
Median Absolute Deviation (MAD)	0
Skewness	4.0757845
Sum	-1488606
Variance	19540.99
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
-200	8443	90.2%
66	14	0.1%
40	9	0.1%
29	9	0.1%
88	8	0.1%
93	8	0.1%
84	7	0.1%
55	7	0.1%
95	7	0.1%
60	7	0.1%
Other values (420)	838	9.0%

Value	Count	Frequency (%)
-200	8443	90.2%
7	1	< 0.1%
8	1	< 0.1%
9	1	< 0.1%
10	1	< 0.1%
11	1	< 0.1%
14	2	< 0.1%
16	1	< 0.1%
17	4	< 0.1%
18	2	< 0.1%

Value	Count	Frequency (%)
1189	1	< 0.1%
1129	1	< 0.1%
1084	1	< 0.1%
1042	1	< 0.1%
974	1	< 0.1%
926	1	< 0.1%
899	1	< 0.1%
880	1	< 0.1%
872	1	< 0.1%
840	1	< 0.1%

C6H6(GT)
Real number (ℝ)

High correlation

Distinct	408
Distinct (%)	4.4%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	1.8656834

Minimum	-200
Maximum	63.7
Zeros	0
Zeros (%)	0.0%
Negative	366
Negative (%)	3.9%
Memory size	146.2 KiB

Quantile statistics

Minimum	-200
5-th percentile	0.7
Q1	4
median	7.9
Q3	13.6
95-th percentile	24.42
Maximum	63.7
Range	263.7
Interquartile range (IQR)	9.6

Descriptive statistics

Standard deviation	41.380206
Coefficient of variation (CV)	22.17965
Kurtosis	19.188651
Mean	1.8656834
Median Absolute Deviation (MAD)	4.5
Skewness	-4.5087629
Sum	17457.2
Variance	1712.3215
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
-200	366	3.9%
3.6	84	0.9%
2.8	82	0.9%
3.8	79	0.8%
4	78	0.8%
3.1	77	0.8%
3	76	0.8%
2.5	75	0.8%
2.9	73	0.8%
5.4	72	0.8%
Other values (398)	8295	88.7%

Value	Count	Frequency (%)
-200	366	3.9%
0.1	2	< 0.1%
0.2	8	0.1%
0.3	10	0.1%
0.4	14	0.1%
0.5	20	0.2%
0.6	23	0.2%
0.7	31	0.3%
0.8	25	0.3%
0.9	25	0.3%

Value	Count	Frequency (%)
63.7	1	< 0.1%
52.1	1	< 0.1%
50.8	1	< 0.1%
50.7	1	< 0.1%
50.6	1	< 0.1%
49.5	1	< 0.1%
49.4	1	< 0.1%
48.2	1	< 0.1%
47.7	1	< 0.1%
47.5	1	< 0.1%

PT08.S2(NMHC)
Real number (ℝ)

High correlation

Distinct	1246
Distinct (%)	13.3%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	894.59528

Minimum	-200
Maximum	2214
Zeros	0
Zeros (%)	0.0%
Negative	366
Negative (%)	3.9%
Memory size	146.2 KiB

Quantile statistics

Minimum	-200
5-th percentile	471
Q1	711
median	895
Q3	1105
95-th percentile	1415
Maximum	2214
Range	2414
Interquartile range (IQR)	394

Descriptive statistics

Standard deviation	342.33325
Coefficient of variation (CV)	0.3826683
Kurtosis	2.3700888
Mean	894.59528
Median Absolute Deviation (MAD)	195
Skewness	-0.79343464
Sum	8370728
Variance	117192.06
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
-200	366	3.9%
853	25	0.3%
880	23	0.2%
800	23	0.2%
859	23	0.2%
985	22	0.2%
783	21	0.2%
769	21	0.2%
776	21	0.2%
850	21	0.2%
Other values (1236)	8791	94.0%

Value	Count	Frequency (%)
-200	366	3.9%
383	2	< 0.1%
387	1	< 0.1%
388	1	< 0.1%
390	2	< 0.1%
397	1	< 0.1%
399	1	< 0.1%
402	2	< 0.1%
407	2	< 0.1%
408	1	< 0.1%

Value	Count	Frequency (%)
2214	1	< 0.1%
2007	1	< 0.1%
1983	1	< 0.1%
1981	1	< 0.1%
1980	1	< 0.1%
1959	1	< 0.1%
1958	1	< 0.1%
1935	1	< 0.1%
1924	1	< 0.1%
1920	1	< 0.1%

NOx(GT)
Real number (ℝ)

High correlation

Distinct	926
Distinct (%)	9.9%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	168.61697

Minimum	-200
Maximum	1479
Zeros	0
Zeros (%)	0.0%
Negative	1639
Negative (%)	17.5%
Memory size	146.2 KiB

Quantile statistics

Minimum	-200
5-th percentile	-200
Q1	50
median	141
Q3	284
95-th percentile	653.2
Maximum	1479
Range	1679
Interquartile range (IQR)	234

Descriptive statistics

Standard deviation	257.43387
Coefficient of variation (CV)	1.5267376
Kurtosis	1.5054171
Mean	168.61697
Median Absolute Deviation (MAD)	109
Skewness	0.82523219
Sum	1577749
Variance	66272.196
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
-200	1639	17.5%
89	41	0.4%
65	37	0.4%
93	36	0.4%
122	36	0.4%
41	36	0.4%
132	35	0.4%
95	35	0.4%
180	35	0.4%
51	34	0.4%
Other values (916)	7393	79.0%

Value	Count	Frequency (%)
-200	1639	17.5%
2	1	< 0.1%
4	1	< 0.1%
6	1	< 0.1%
7	1	< 0.1%
8	1	< 0.1%
9	1	< 0.1%
10	3	< 0.1%
11	4	< 0.1%
12	4	< 0.1%

Value	Count	Frequency (%)
1479	1	< 0.1%
1389	2	< 0.1%
1369	1	< 0.1%
1358	1	< 0.1%
1345	1	< 0.1%
1310	1	< 0.1%
1301	1	< 0.1%
1290	1	< 0.1%
1253	1	< 0.1%
1247	1	< 0.1%

PT08.S3(NOx)
Real number (ℝ)

High correlation

Distinct	1222
Distinct (%)	13.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	794.99017

Minimum	-200
Maximum	2683
Zeros	0
Zeros (%)	0.0%
Negative	366
Negative (%)	3.9%
Memory size	146.2 KiB

Quantile statistics

Minimum	-200
5-th percentile	410
Q1	637
median	794
Q3	960
95-th percentile	1281.2
Maximum	2683
Range	2883
Interquartile range (IQR)	323

Descriptive statistics

Standard deviation	321.99355
Coefficient of variation (CV)	0.40502834
Kurtosis	3.1048259
Mean	794.99017
Median Absolute Deviation (MAD)	161
Skewness	-0.38475977
Sum	7438723
Variance	103679.85
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
-200	366	3.9%
767	25	0.3%
733	25	0.3%
846	25	0.3%
765	23	0.2%
876	23	0.2%
685	22	0.2%
816	22	0.2%
891	22	0.2%
830	22	0.2%
Other values (1212)	8782	93.9%

Value	Count	Frequency (%)
-200	366	3.9%
322	1	< 0.1%
325	2	< 0.1%
328	1	< 0.1%
330	2	< 0.1%
334	1	< 0.1%
335	1	< 0.1%
340	2	< 0.1%
341	1	< 0.1%
345	1	< 0.1%

Value	Count	Frequency (%)
2683	1	< 0.1%
2559	1	< 0.1%
2542	1	< 0.1%
2331	1	< 0.1%
2327	1	< 0.1%
2318	1	< 0.1%
2294	1	< 0.1%
2121	1	< 0.1%
2095	2	< 0.1%
2081	1	< 0.1%

NO2(GT)
Real number (ℝ)

High correlation

Distinct	284
Distinct (%)	3.0%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	58.148873

Minimum	-200
Maximum	340
Zeros	0
Zeros (%)	0.0%
Negative	1642
Negative (%)	17.5%
Memory size	146.2 KiB

Quantile statistics

Minimum	-200
5-th percentile	-200
Q1	53
median	96
Q3	133
95-th percentile	194
Maximum	340
Range	540
Interquartile range (IQR)	80

Descriptive statistics

Standard deviation	126.94046
Coefficient of variation (CV)	2.1830252
Kurtosis	0.27559907
Mean	58.148873
Median Absolute Deviation (MAD)	40
Skewness	-1.2256296
Sum	544099
Variance	16113.879
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
-200	1642	17.5%
97	78	0.8%
117	77	0.8%
119	77	0.8%
95	75	0.8%
101	75	0.8%
114	75	0.8%
110	74	0.8%
115	73	0.8%
116	72	0.8%
Other values (274)	7039	75.2%

Value	Count	Frequency (%)
-200	1642	17.5%
2	1	< 0.1%
3	1	< 0.1%
5	2	< 0.1%
7	1	< 0.1%
8	2	< 0.1%
9	2	< 0.1%
11	2	< 0.1%
12	2	< 0.1%
13	1	< 0.1%

Value	Count	Frequency (%)
340	1	< 0.1%
333	1	< 0.1%
326	1	< 0.1%
322	1	< 0.1%
312	1	< 0.1%
310	1	< 0.1%
309	1	< 0.1%
306	1	< 0.1%
301	1	< 0.1%
296	1	< 0.1%

PT08.S4(NO2)
Real number (ℝ)

High correlation

Distinct	1604
Distinct (%)	17.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	1391.4796

Minimum	-200
Maximum	2775
Zeros	0
Zeros (%)	0.0%
Negative	366
Negative (%)	3.9%
Memory size	146.2 KiB

Quantile statistics

Minimum	-200
5-th percentile	757
Q1	1185
median	1446
Q3	1662
95-th percentile	2020.2
Maximum	2775
Range	2975
Interquartile range (IQR)	477

Descriptive statistics

Standard deviation	467.21012
Coefficient of variation (CV)	0.33576497
Kurtosis	3.2670279
Mean	1391.4796
Median Absolute Deviation (MAD)	236
Skewness	-1.2441099
Sum	13020075
Variance	218285.3
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
-200	366	3.9%
1488	24	0.3%
1580	22	0.2%
1539	21	0.2%
1467	20	0.2%
1638	19	0.2%
1490	18	0.2%
1418	18	0.2%
1321	17	0.2%
1511	17	0.2%
Other values (1594)	8815	94.2%

Value	Count	Frequency (%)
-200	366	3.9%
551	1	< 0.1%
559	1	< 0.1%
561	1	< 0.1%
579	1	< 0.1%
601	1	< 0.1%
602	1	< 0.1%
605	1	< 0.1%
621	1	< 0.1%
637	1	< 0.1%

Value	Count	Frequency (%)
2775	1	< 0.1%
2746	1	< 0.1%
2691	1	< 0.1%
2684	1	< 0.1%
2679	1	< 0.1%
2667	1	< 0.1%
2665	1	< 0.1%
2662	1	< 0.1%
2643	2	< 0.1%
2641	2	< 0.1%

PT08.S5(O3)
Real number (ℝ)

High correlation

Distinct	1744
Distinct (%)	18.6%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	975.07203

Minimum	-200
Maximum	2523
Zeros	0
Zeros (%)	0.0%
Negative	366
Negative (%)	3.9%
Memory size	146.2 KiB

Quantile statistics

Minimum	-200
5-th percentile	348
Q1	700
median	942
Q3	1255
95-th percentile	1750
Maximum	2523
Range	2723
Interquartile range (IQR)	555

Descriptive statistics

Standard deviation	456.93818
Coefficient of variation (CV)	0.46861993
Kurtosis	0.63829664
Mean	975.07203
Median Absolute Deviation (MAD)	272
Skewness	-0.03466188
Sum	9123749
Variance	208792.5
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
-200	366	3.9%
836	20	0.2%
825	20	0.2%
826	19	0.2%
926	18	0.2%
799	17	0.2%
777	17	0.2%
949	16	0.2%
891	16	0.2%
923	16	0.2%
Other values (1734)	8832	94.4%

Value	Count	Frequency (%)
-200	366	3.9%
221	1	< 0.1%
225	1	< 0.1%
227	1	< 0.1%
232	1	< 0.1%
252	1	< 0.1%
253	1	< 0.1%
257	1	< 0.1%
261	2	< 0.1%
262	1	< 0.1%

Value	Count	Frequency (%)
2523	1	< 0.1%
2522	1	< 0.1%
2519	1	< 0.1%
2515	1	< 0.1%
2494	1	< 0.1%
2480	1	< 0.1%
2475	1	< 0.1%
2465	1	< 0.1%
2452	1	< 0.1%
2434	1	< 0.1%

T
Real number (ℝ)

High correlation

Distinct	437
Distinct (%)	4.7%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	9.778305

Minimum	-200
Maximum	44.6
Zeros	1
Zeros (%)	< 0.1%
Negative	379
Negative (%)	4.1%
Memory size	146.2 KiB

Quantile statistics

Minimum	-200
5-th percentile	2.5
Q1	10.9
median	17.2
Q3	24.1
95-th percentile	34.3
Maximum	44.6
Range	244.6
Interquartile range (IQR)	13.2

Descriptive statistics

Standard deviation	43.203623
Coefficient of variation (CV)	4.4183141
Kurtosis	18.774807
Mean	9.778305
Median Absolute Deviation (MAD)	6.6
Skewness	-4.445467
Sum	91495.6
Variance	1866.553
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
-200	366	3.9%
20.8	57	0.6%
21.3	54	0.6%
13.8	51	0.5%
20.2	51	0.5%
12.3	49	0.5%
15.6	49	0.5%
12	49	0.5%
16.3	48	0.5%
19.8	48	0.5%
Other values (427)	8535	91.2%

Value	Count	Frequency (%)
-200	366	3.9%
-1.9	1	< 0.1%
-1.4	1	< 0.1%
-1.3	2	< 0.1%
-1.2	1	< 0.1%
-1.1	1	< 0.1%
-0.6	2	< 0.1%
-0.5	1	< 0.1%
-0.3	1	< 0.1%
-0.2	1	< 0.1%

Value	Count	Frequency (%)
44.6	1	< 0.1%
44.3	1	< 0.1%
43.4	1	< 0.1%
43.1	1	< 0.1%
42.8	3	< 0.1%
42.7	1	< 0.1%
42.6	1	< 0.1%
42.5	1	< 0.1%
42.2	2	< 0.1%
42	2	< 0.1%

RH
Real number (ℝ)

Distinct	754
Distinct (%)	8.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	39.48538

Minimum	-200
Maximum	88.7
Zeros	0
Zeros (%)	0.0%
Negative	366
Negative (%)	3.9%
Memory size	146.2 KiB

Quantile statistics

Minimum	-200
5-th percentile	15
Q1	34.1
median	48.6
Q3	61.9
95-th percentile	77.6
Maximum	88.7
Range	288.7
Interquartile range (IQR)	27.8

Descriptive statistics

Standard deviation	51.216145
Coefficient of variation (CV)	1.2970914
Kurtosis	15.764154
Mean	39.48538
Median Absolute Deviation (MAD)	13.9
Skewness	-3.9324074
Sum	369464.7
Variance	2623.0935
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
-200	366	3.9%
53.1	31	0.3%
47.8	30	0.3%
57.9	30	0.3%
60.8	27	0.3%
45.9	27	0.3%
43.4	26	0.3%
50.9	26	0.3%
49.8	26	0.3%
50.1	26	0.3%
Other values (744)	8742	93.4%

Value	Count	Frequency (%)
-200	366	3.9%
9.2	2	< 0.1%
9.3	1	< 0.1%
9.6	1	< 0.1%
9.8	1	< 0.1%
9.9	2	< 0.1%
10	2	< 0.1%
10.2	1	< 0.1%
10.4	1	< 0.1%
10.7	1	< 0.1%

Value	Count	Frequency (%)
88.7	1	< 0.1%
87.2	1	< 0.1%
87.1	1	< 0.1%
87	1	< 0.1%
86.6	2	< 0.1%
86.5	2	< 0.1%
86	1	< 0.1%
85.7	3	< 0.1%
85.6	1	< 0.1%
85.5	1	< 0.1%

AH
Real number (ℝ)

High correlation

Distinct	6684
Distinct (%)	71.4%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	-6.8376036

Minimum	-200
Maximum	2.231
Zeros	0
Zeros (%)	0.0%
Negative	366
Negative (%)	3.9%
Memory size	146.2 KiB

Quantile statistics

Minimum	-200
5-th percentile	0.29506
Q1	0.6923
median	0.9768
Q3	1.2962
95-th percentile	1.72044
Maximum	2.231
Range	202.231
Interquartile range (IQR)	0.6039

Descriptive statistics

Standard deviation	38.97667
Coefficient of variation (CV)	-5.7003407
Kurtosis	20.613092
Mean	-6.8376036
Median Absolute Deviation (MAD)	0.3022
Skewness	-4.7545703
Sum	-63979.457
Variance	1519.1808
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
-200	366	3.9%
0.7487	6	0.1%
0.8394	6	0.1%
0.9684	6	0.1%
0.9722	6	0.1%
1.1199	6	0.1%
0.8325	5	0.1%
0.8736	5	0.1%
0.6686	5	0.1%
1.0594	5	0.1%
Other values (6674)	8941	95.6%

Value	Count	Frequency (%)
-200	366	3.9%
0.1847	1	< 0.1%
0.1862	1	< 0.1%
0.191	1	< 0.1%
0.1975	1	< 0.1%
0.1988	1	< 0.1%
0.2029	1	< 0.1%
0.2031	1	< 0.1%
0.2062	1	< 0.1%
0.2086	1	< 0.1%

Value	Count	Frequency (%)
2.231	1	< 0.1%
2.1806	1	< 0.1%
2.1766	1	< 0.1%
2.1719	1	< 0.1%
2.1395	1	< 0.1%
2.1362	1	< 0.1%
2.1247	1	< 0.1%
2.1195	1	< 0.1%
2.117	1	< 0.1%
2.1164	1	< 0.1%

	AH	C6H6(GT)	CO(GT)	NMHC(GT)	NO2(GT)	NOx(GT)	PT08.S1(CO)	PT08.S2(NMHC)	PT08.S3(NOx)	PT08.S4(NO2)	PT08.S5(O3)	RH	T	Time
AH	1.000	0.283	-0.114	-0.157	-0.330	-0.243	0.235	0.283	-0.080	0.685	0.187	0.251	0.735	0.000
C6H6(GT)	0.283	1.000	0.590	0.028	0.457	0.480	0.902	1.000	-0.642	0.777	0.888	0.004	0.357	0.281
CO(GT)	-0.114	0.590	1.000	0.136	0.770	0.813	0.584	0.590	-0.580	0.305	0.576	-0.043	-0.071	0.193
NMHC(GT)	-0.157	0.028	0.136	1.000	0.022	-0.038	0.132	0.028	0.161	0.120	0.025	0.011	-0.096	0.082
NO2(GT)	-0.330	0.457	0.770	0.022	1.000	0.906	0.476	0.457	-0.522	0.061	0.498	-0.134	-0.203	0.262
NOx(GT)	-0.243	0.480	0.813	-0.038	0.906	1.000	0.507	0.480	-0.581	0.066	0.551	0.058	-0.263	0.197
PT08.S1(CO)	0.235	0.902	0.584	0.132	0.476	0.507	1.000	0.902	-0.645	0.686	0.906	0.195	0.185	0.222
PT08.S2(NMHC)	0.283	1.000	0.590	0.028	0.457	0.480	0.902	1.000	-0.642	0.777	0.888	0.004	0.357	0.257
PT08.S3(NOx)	-0.080	-0.642	-0.580	0.161	-0.522	-0.581	-0.645	-0.642	1.000	-0.363	-0.652	0.038	0.008	0.176
PT08.S4(NO2)	0.685	0.777	0.305	0.120	0.061	0.066	0.686	0.777	-0.363	1.000	0.610	0.054	0.658	0.174
PT08.S5(O3)	0.187	0.888	0.576	0.025	0.498	0.551	0.906	0.888	-0.652	0.610	1.000	0.226	0.111	0.166
RH	0.251	0.004	-0.043	0.011	-0.134	0.058	0.195	0.004	0.038	0.054	0.226	1.000	-0.369	0.298
T	0.735	0.357	-0.071	-0.096	-0.203	-0.263	0.185	0.357	0.008	0.658	0.111	-0.369	1.000	0.170
Time	0.000	0.281	0.193	0.082	0.262	0.197	0.222	0.257	0.176	0.174	0.166	0.298	0.170	1.000

A simple visualization of nullity by column.

Nullity matrix is a data-dense display which lets you quickly visually pick out patterns in data completion.

	Date	Time	CO(GT)	PT08.S1(CO)	NMHC(GT)	C6H6(GT)	PT08.S2(NMHC)	NOx(GT)	PT08.S3(NOx)	NO2(GT)	PT08.S4(NO2)	PT08.S5(O3)	T	RH	AH
0	10/03/2004	18.00.00	2.6	1360.0	150.0	11.9	1046.0	166.0	1056.0	113.0	1692.0	1268.0	13.6	48.9	0.7578
1	10/03/2004	19.00.00	2.0	1292.0	112.0	9.4	955.0	103.0	1174.0	92.0	1559.0	972.0	13.3	47.7	0.7255
2	10/03/2004	20.00.00	2.2	1402.0	88.0	9.0	939.0	131.0	1140.0	114.0	1555.0	1074.0	11.9	54.0	0.7502
3	10/03/2004	21.00.00	2.2	1376.0	80.0	9.2	948.0	172.0	1092.0	122.0	1584.0	1203.0	11.0	60.0	0.7867
4	10/03/2004	22.00.00	1.6	1272.0	51.0	6.5	836.0	131.0	1205.0	116.0	1490.0	1110.0	11.2	59.6	0.7888
5	10/03/2004	23.00.00	1.2	1197.0	38.0	4.7	750.0	89.0	1337.0	96.0	1393.0	949.0	11.2	59.2	0.7848
6	11/03/2004	00.00.00	1.2	1185.0	31.0	3.6	690.0	62.0	1462.0	77.0	1333.0	733.0	11.3	56.8	0.7603
7	11/03/2004	01.00.00	1.0	1136.0	31.0	3.3	672.0	62.0	1453.0	76.0	1333.0	730.0	10.7	60.0	0.7702
8	11/03/2004	02.00.00	0.9	1094.0	24.0	2.3	609.0	45.0	1579.0	60.0	1276.0	620.0	10.7	59.7	0.7648
9	11/03/2004	03.00.00	0.6	1010.0	19.0	1.7	561.0	-200.0	1705.0	-200.0	1235.0	501.0	10.3	60.2	0.7517

	Date	Time	CO(GT)	PT08.S1(CO)	NMHC(GT)	C6H6(GT)	PT08.S2(NMHC)	NOx(GT)	PT08.S3(NOx)	NO2(GT)	PT08.S4(NO2)	PT08.S5(O3)	T	RH	AH
9347	04/04/2005	05.00.00	0.5	888.0	-200.0	1.3	528.0	77.0	1077.0	53.0	987.0	578.0	10.4	59.9	0.7550
9348	04/04/2005	06.00.00	1.1	1031.0	-200.0	4.4	730.0	182.0	760.0	93.0	1129.0	905.0	9.5	63.1	0.7531
9349	04/04/2005	07.00.00	4.0	1384.0	-200.0	17.4	1221.0	594.0	470.0	155.0	1600.0	1457.0	9.7	61.9	0.7446
9350	04/04/2005	08.00.00	5.0	1446.0	-200.0	22.4	1362.0	586.0	415.0	174.0	1777.0	1705.0	13.5	48.9	0.7553
9351	04/04/2005	09.00.00	3.9	1297.0	-200.0	13.6	1102.0	523.0	507.0	187.0	1375.0	1583.0	18.2	36.3	0.7487
9352	04/04/2005	10.00.00	3.1	1314.0	-200.0	13.5	1101.0	472.0	539.0	190.0	1374.0	1729.0	21.9	29.3	0.7568
9353	04/04/2005	11.00.00	2.4	1163.0	-200.0	11.4	1027.0	353.0	604.0	179.0	1264.0	1269.0	24.3	23.7	0.7119
9354	04/04/2005	12.00.00	2.4	1142.0	-200.0	12.4	1063.0	293.0	603.0	175.0	1241.0	1092.0	26.9	18.3	0.6406
9355	04/04/2005	13.00.00	2.1	1003.0	-200.0	9.5	961.0	235.0	702.0	156.0	1041.0	770.0	28.3	13.5	0.5139
9356	04/04/2005	14.00.00	2.2	1071.0	-200.0	11.9	1047.0	265.0	654.0	168.0	1129.0	816.0	28.5	13.1	0.5028

Overview

Common Values

Length

Most occurring characters

Most occurring categories

Most frequent character per category

(unknown)

Most occurring scripts

Most frequent character per script

(unknown)

Most occurring blocks

Most frequent character per block

(unknown)

Interactions

Correlations

Missing values

Sample

Overview

Variables

Common Values

Length

Most occurring characters

Most occurring categories

Most frequent character per category

(unknown)

Most occurring scripts

Most frequent character per script

(unknown)

Most occurring blocks

Most frequent character per block

(unknown)

Interactions

Correlations

Missing values

Sample